200222100 has 216 divisors, whose sum is σ = 686405720. Its totient is φ = 48522240.

The previous prime is 200222093. The next prime is 200222129. The reversal of 200222100 is 1222002.

It can be written as a sum of positive squares in 12 ways, for example, as 90098064 + 110124036 = 9492^2 + 10494^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1275222 + ... + 1275378.

Almost surely, 2^200222100 is an apocalyptic number.

200222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200222100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343202860).

200222100 is an abundant number, since it is smaller than the sum of its proper divisors (486183620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200222100 is a wasteful number, since it uses less digits than its factorization.

200222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 200222100 is about 14149.9858657173. The cubic root of 200222100 is about 585.0199423401.

Adding to 200222100 its reverse (1222002), we get a palindrome (201444102).

It can be divided in two parts, 20022 and 2100, that added together give a palindrome (22122).

The spelling of 200222100 in words is "two hundred million, two hundred twenty-two thousand, one hundred".